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d5afa6e206
Co-authored-by: Fangyin Cheng <staneyffer@gmail.com> Co-authored-by: lcx01800250 <lcx01800250@alibaba-inc.com> Co-authored-by: licunxing <864255598@qq.com> Co-authored-by: Aralhi <xiaoping0501@gmail.com> Co-authored-by: xuyuan23 <643854343@qq.com> Co-authored-by: aries_ckt <916701291@qq.com> Co-authored-by: hzh97 <2976151305@qq.com>
76 lines
2.0 KiB
Python
76 lines
2.0 KiB
Python
from alembic import context
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from sqlalchemy import engine_from_config, pool
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from dbgpt.storage.metadata.db_manager import db
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# this is the Alembic Config object, which provides
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# access to the values within the .ini file in use.
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config = context.config
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# add your model's MetaData object here
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# for 'autogenerate' support
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# from myapp import mymodel
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# other values from the config, defined by the needs of env.py,
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# can be acquired:
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# my_important_option = config.get_main_option("my_important_option")
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# ... etc.
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def run_migrations_offline() -> None:
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"""Run migrations in 'offline' mode.
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This configures the context with just a URL
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and not an Engine, though an Engine is acceptable
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here as well. By skipping the Engine creation
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we don't even need a DBAPI to be available.
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Calls to context.execute() here emit the given string to the
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script output.
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"""
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target_metadata = db.metadata
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url = config.get_main_option("sqlalchemy.url")
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assert target_metadata is not None
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assert url is not None
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context.configure(
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url=url,
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target_metadata=target_metadata,
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literal_binds=True,
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dialect_opts={"paramstyle": "named"},
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)
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with context.begin_transaction():
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context.run_migrations()
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def run_migrations_online() -> None:
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"""Run migrations in 'online' mode.
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In this scenario we need to create an Engine
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and associate a connection with the context.
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"""
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engine = db.engine
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target_metadata = db.metadata
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with engine.connect() as connection:
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if engine.dialect.name == "sqlite":
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context.configure(
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connection=engine.connect(),
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target_metadata=target_metadata,
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render_as_batch=True,
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)
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else:
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context.configure(connection=connection, target_metadata=target_metadata)
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with context.begin_transaction():
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context.run_migrations()
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if context.is_offline_mode():
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run_migrations_offline()
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else:
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run_migrations_online()
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